NeSA NeSA Mathematics 3

Question 1

What is the greatest common factor (GCF) of 24 and 36?

Accepted Answer

12

Answer

Factors of 24: 1,2,3,4,6,8,12,24; factors of 36: 1,2,3,4,6,9,12,18,36 — GCF is 12.

Question 2

A train travels 180 miles in 3 hours. What is its average speed?

Accepted Answer

60 mph

Answer

Speed = distance ÷ time = 180 ÷ 3 = 60 mph.

Question 3

Which expression equals 48?

Accepted Answer

4 × 12

Answer

4 × 12 = 48.

Question 4

If the ratio of boys to girls in a class is 3:4 and there are 21 boys, how many girls are there?

Accepted Answer

28

Answer

If 3 parts = 21, then 1 part = 7, so 4 parts = 28 girls.

Question 5

What is the value of √144?

Accepted Answer

12

Answer

12 × 12 = 144, so √144 = 12.

NeSA - Nebraska State Accountability Practice Test